What does "inch forward" mean?

To move forward in a very slow, cautious, and careful way.

What is a synonym for "inch forward"?

Common synonyms include: claws, crowd, drive on, forge ahead, go slow, inch.

verb, slang

verb, slang ·Uncommon ·College level

Verb

1
To move forward in a very slow, cautious, and careful way. idiomatic, informal